HRF-AT4510 15.5 dB, DC - 4GHz, 5 Bit Parallel Digital Attenuator The Honeywell HRF-AT4510 is a 5-bit digital attenuator that is ideal for use in broadband communication system applications that require accuracy, speed and low power consumption. The HRF-AT4510 is manufactured with Honeywell's patented Silicon On Insulator (SOI) CMOS manufacturing technology, which provides the performance of GaAs with the economy and integration capabilities of conventional CMOS. These attenuators are DC coupled to improve lower operating frequency, frequency response and reduce the number of DC bias points required. FEATURES * * * * * * * Very Low DC Power Consumption Attenuation In Steps From 0.5 dB To 15.5 dB Single Positive Power Supply Voltage Parallel Data Interface 50 Ohm Impedance DC-coupled, bi-directional RF path Space Saving VQFN Surface Mount Packaging HRF-AT4510 in VQFN Package RF ELECTRICAL SPECIFICATIONS @ + 25oC Results @ VDD = 5.0 +/- 10%, VSS = 0 unless otherwise stated, Z0 = 50 Ohms Contact Honeywell for relative performance at other supply configurations Parameter Test Condition Insertion Loss Frequency Typical Maximum Units 0.5 GHz 2.0 GHz 3.0 GHz 4.0 GHz 1.6 2.0 2.4 4.4 2.2 2.4 2.9 5.0 dB dB dB dB 20 26 1dB Compression VSS = 0V, Input Power VSS = -3V, Input Power 2.0 GHz 2.0 GHz Input IP3 VSS = 0V Two-tone inputs, up to +5 dBm @ 0 dB attenuation 2.0 GHz Input IP3 Vss = -3V Two-tone inputs, up to +5 dBm @ 0 dB attenuation Return Loss Any Bit or Combination of Bits Attenuation Accuracy All attenuation states All attenuation states All attenuation states All attenuation states Trise, Tfall Ton, Toff (Tpd) 10% To 90% 50% Cntl To 90% / 10%RF Minimum 36.0 2.0 GHz dBm >36.0 dBm -15 dB +/-(0.15 + 3% of programmed IL) +/-(0.20 + 3% of programmed IL) +/-(0.30 + 3% of programmed IL) +/-(0.45 + 3% of programmed IL) dB dB dB dB 10 15 nS nS -11 1.0 GHz 2.0 GHz 3.0 GHz 4.0 GHz dBm dBm HRF-AT4510 FUNCTIONAL SCHEMATIC S4 S3 S2 S1 S0 ESD, Buffer, Level Shift RF In RF Out 8dB 4dB 2dB 1dB .5dB DC ELECTRICAL SPECIFICATIONS @ + 25C Parameter Minimum Typical VDD 3.3 5.0 VSS -5.0 IDD <5.0 CMOS Logic level (0) 0 CMOS Logic level (1) VDD - 0.8 Input Leakage Current Note 1, the performance curves are for VDD = +5.0 +/- 10% Maximum 5.5 50 0.8 VDD 10 Units V V uA V V uA ABSOLUTE MAXIMUM RATINGS1 Parameter Input Power VDD VSS ESD Voltage 2 Operating Temperature Storage Temperature Absolute Maximum Units + 35 +6.0 -5.5 400 -40 To +85 -65 To +125 dBm V V V Degrees C Degrees C Moisture Sensitivity Level Level 1 Digital Inputs VDD+0.6 max to -0.6 min V Note 1 - Operation of this device beyond any of these parameters may cause permanent damage. Note 2 - Although the HRF-AT4510 contains ESD protection circuitry on all digital inputs, precautions should be taken to ensure that the Absolute Maximum Ratings are not exceeded. Latch-Up: Unlike conventional CMOS digital attenuators, Honeywell's HRF-AT4510 is immune to latch-up. 2 www.honeywell.com/microwave HRF-AT4510 PIN CONFIGURATIONS Pin Function Pin Function 1 2 3 4 5 6 7 8 9 10 11 12 VDD GROUND GROUND RF INPUT GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND 13 14 15 16 17 18 19 20 21 22 23 24 GROUND GROUND RF OUTPUT GROUND VSS GROUND S0 S1 S2 S3 S4 OPEN Note: Bottom ground plate must be grounded for proper RF performance. TRUTH TABLE S4 S3 S2 S1 S0 Output 0 0 0 0 0 1 1 0 0 0 0 1 0 1 0 0 0 1 0 0 1 0 0 1 0 0 0 1 0 1 0 0 0 0 1 Reference Input 0.5 dB 1 dB 2 dB 4 dB 8 dB 15.5 dB Operation: Data on parallel input "S" pins are independently buffered and presented to the RF attenuator circuits. "0" = CMOS Low, "1" = CMOS High. www.honeywell.com/microwave 3 HRF-AT4510 PERFORMANCE CURVES Insertion Loss Typical AT4510 Reference Insertion Loss 0.0 - 40 C +25C -0.5 + 85 C 3.3 V Insertion Loss (dB) -1.0 -1.5 -2.0 -2.5 -3.0 -3.5 -4.0 -4.5 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 3.75 Frequency (GHz) Return Loss Typical AT4510 Input Return Loss 0.0 -5.0 Attn 1dB Attn 2dB Attn 3dB Attn 9dB Return Loss (dB) -10.0 -15.0 -20.0 -25.0 -30.0 -35.0 -40.0 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 Frequency (GHz) 4 www.honeywell.com/microwave HRF-AT4510 Step Accuracy Typical AT4510 Step Accuracy 0.5 0.4 Step Accuracy (dB) 0.3 0.2 1 dB 2 dB 4 dB 8 dB 15.5 dB 1 dB 4 dB 0.1 0.5 dB 0.0 -0.1 2dB -0.2 -0.3 8 dB -0.4 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Frequency (GHz) Relative Accuracy Typical AT4510 Relative Accuracy 0.5 Relative Accuracy (dB) 0.4 0.5 dB 1 dB 2 dB 4 dB 8 dB 15.5 dB 8 dB 0.3 4 dB 0.2 2 dB 1 dB 0.1 0.5 dB 0.0 -0.1 -0.2 15.5 dB -0.3 -0.4 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Frequency (GHz) www.honeywell.com/microwave 5 HRF-AT4510 PACKAGE OUTLINE DRAWING NOTES 1. Pin 1 ID can be a combination of a dot and/or chamfer. 2. Dimensions are in millimeters. LEAD FINISH The package leads are Tin Lead (SnPb). CIRCUIT APPLICATION INFORMATION These attenuators require a DC reference to ground. They may not operate properly when AC coupled on both the RF input and output without a DC ground reference provided as part of the circuit. See Application Note AN311 at www.honeywell.com/microwave. 6 www.honeywell.com/microwave HRF-AT4510 EVALUATION CIRCUIT BOARD Honeywell's evaluation board provides an easy to use method of evaluating the RF performance of our attenuator. Simply connect power, DC and RF signals to be measuring attenuator performance in less than 10 minutes. Open VDD S4 RF In Gnd S3 S2 S1 S0 Gnd VSS HRF-AT4510 Evaluation Board Top View RF Out HRF-AT4510 Honeywell HRF-AT4510 Evaluation Board EVALUATION CIRCUIT BOARD LAYOUT DESIGN DETAILS Item Description PCB Attenuator Chip Capacitor RF Connector DC Pin Impedance Matched Multi-Layer FR4 HRF-AT4510 Digital Attenuator Panasonic Model ECU-E1C103KBQ Capacitor, .01uf 0402 10% 16V Johnson Connectors Model 142-0701-801 SMA RF Coaxial Connector Mil-Max Model 800-10-064-10-001 Header Pins ORDERING INFORMATION Ordering Number Delivery Method Units Per Shipment HRF-AT4510-TR HRF-AT4510-T HRF-AT4510-E Tape & Reel Tape Evaluation Board 3000 Units Per Reel <3000 One Board Per Box FIND OUT MORE For more information on Honeywell's Microwave Products visit us online at www.honeywell.com/microwave or contact us at 800-323-8295 (763-954-2474 internationally). Honeywell reserves the right to make changes to improve reliability, function or design. Honeywell does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. Honeywell 12001 Highway 55 Plymouth, MN 55441 Tel: 800-323-8295 www.honeywell.com/microwave www.honeywell.com/microwave Form #4510W January 2007 (c)2007 Honeywell International Inc. 7